#include<stdio.h>
#include<graphics.h>
#include<conio.h>
#define PI 3.14
int main()
{
	int center_x, center_y, radius;
	int left,top, right,bottom;
	center_x=300;
	center_y = 300;
	radius = 200;
	left = center_x - radius;
	right = center_x + radius;
	top = center_y - radius;
	bottom = center_y + radius;
	initgraph(600, 600);
	circle(center_x,center_y, radius);
	solidpie(left, top, right, bottom, PI / 6, PI / 2);
	_getch();
	return 0;
}